Space Crab, submitted by Tracer Tong. Move over, Timecube! Dr. Wise Young, head of the W. M. Keck Center for Collaborative Neuroscience, has burst free of being educated retarded and has come up with a revolutionary space propulsion system he calls "Space Crab". What is the Space Crab, you ask? Let's look to Dr. Young to explain it.

This was done on a highly polished travertine table that should have a very low friction coefficient.

As you can see there is a rotation to the left followed by a rotation to the right, much like a crab, hence the name Space Crab ® !

Be sure to watch the incredible video of the Space Crab in action! Dr. Young has completely solved the need for astronauts to shake a toy hovercraft. They can now just attach swinging wooden blocks to the hovercraft motor and it will shake all by itself!